Ingredient Note: Chipotle peppers are dried, smoked jalapeno peppers, often used to add heat and a smoky flavor to foods. Ground chipotle can be found in the specialty-spice section of most supermarkets.

Whisk cornmeal, flour, baking powder, salt, cinnamon and chipotle (or cayenne) in a medium bowl. Mix banana, egg and milk (or buttermilk) in another medium bowl. Add the cornmeal mixture to the banana mixture and stir until just incorporated.

Heat 1 tablespoon oil in a large nonstick skillet over medium-high heat. Reduce heat to medium; using 2 tablespoons of batter for each, space 5 fritters evenly in the pan. Cook until golden brown, 30 seconds to 2 minutes per side. Transfer to the prepared baking sheet. Cook a second batch with the remaining oil and batter, adjusting heat to prevent burning.

Transfer the fritters to the oven and bake until puffed and firm to the touch, 8 to 10 minutes.